1. The problem statement, all variables and given/known data The original direction of the electron beam as it enters the magnetic field is along the earth’s magnetic field. If the magnitude of the earth’s magnetic field is 0.1 mT and the magnetic field due to the Helmholtz coils is 1.0 mT (perpendicular to the electron beam), the resulting path of the electron can be best described as: a) A helical path with the axis of the helix roughly along the earth’s magnetic field. b) A helical path with the axis of the helix roughly along the Helmholtz coils magnetic field. c) A straight line 2. Relevant equations 3. The attempt at a solution which is it? I have no idea!